granulated LF slag at Pittini group steelwork; Table 1
Download scientific diagram | granulated LF slag at Pittini group steelwork; Table 1 -Chemical composition of the sample taken after granulation from publication: Valorization of LF slag: the ...
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A new technological approach to the granulation of slag …
Schematic diagram of a new technological system for hydro-vacuum granulation (HVG) of slag melts. 1—HVG unit; 2—diffusor with a replaceable nozzle (d—functional …
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CFD modelling of dry slag granulation using a novel …
of Liquid Slag on a Spinning Disc for a Novel Dry Slag Granulation Process", Progress in Computational Fluid Dynamics, Vol. 10, Nos. 5-6, 2010, pp. 292-299. 7. Y. Pan, P. J. Witt, B. Kuan, and D. Xie, "CFD Simulation of Slag Droplet Formation by a Spinning Disc in Dry Slag Granulation Processes", 8th International Conference on CFD
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Schematic diagram of high-temperature …
Schematic diagram of high-temperature experimental set-up for centrifugal granulation of molten slag-metal mixture using a spinning cup. [...] Centrifugal granulation technology using a...
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5: Schematic diagram of dry granulation. [3]
Download scientific diagram | 5: Schematic diagram of dry granulation. ... In this study, a development of technology for dry granulation of Linz-Donavitz (LD) slag, under research, has been ...
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Experimental and Mathematical Simulation Study on the Granulation …
The critical cooling rate to vitrify the modified slag was calculated through the Time-Temperature-Transformation diagrams constructed using in situ confocal scanning laser microscopy.
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Composition-specific granulation characteristics of molten slag …
One of these methods is known as dry slag granulation (DSG) including air blast ... Schematic diagram of the experiment system for centrifugal granulation of molten slag (not to scale). ... Fig. 6 plots the box chart of the slag granule sizes out from CA, SEDA and NECE; effects of operational conditions are also included. It is seen that the ...
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High-temperature modification and air-quenching …
Based on the phase diagram of CaO–Si 2O–FeO–MgO–Al 2O 3 slag system, the feasibility of blast furnace (BF) slag as modifier was determined. When the addition of BF slag was increased from 0% to 35%, following results were obtained. The slag fluidity was improved, and the air-quenching temperature range was expanded.
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EQUIPMENT AND TECHNOLOGY OF THE PAUL WURTH
The continuity of the process of granulating, dewatering, and evacuating the slag makes it possible to completely automate the operation of the unit – the INBA slag granulation system does not require an operator.A gas fitter stationed at the control panel of the blast furnace (or a hearth attendant in the cast house) monitors the process on the display of a com-
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Paul Wurth
Paul Wurth's INBA granulation and dewatering technology has been operating there since its initial installation in 2003. It is a cold water system with steam condensation designed for a daily capacity of 1,600 tons of blast furnace slag …
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Physical model of rotating cup granulation
Dry centrifugal granulation technology is an important mean for liquid high-temperature slag. In this paper, the numerical simulation of dry granulation process was carried out to analyze the ...
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DESIGN OF A DRY SLAG GRANULATION PLANT FOR …
Schematic diagram of a dry slag granulation plant. on fluidized bed grates (FBGs) purged with air. Ref. [13] discusses a method for determining the geometric and operating parameters of a disk for spraying LS. The present paper presents acomprehensive methodology for determining all the main design and operating
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Air granulation of reduced slag, in picture: 1. granulation box …
While the slag temperature was rising to the level of 1700ºC, an injector (3 in Figure 2) under the furnace started to inject air with a pressure of 5 bars into the granulation box. The...
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Slag granulation in non-ferrous sector
SMS Group subsidiary Paul Wurth notes that its INBA slag granulation and dewatering system is the proven route for converting molten slag into a value-added product not only in the field of blast ...
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Effect of Water Granulation Conditions on Density …
To investigate the relationship between the density and grain size of water granulated slag and the molten slag temperature, blowing water temperature, slag flow rate, and water/slag ratio, water granulated slag …
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Dry granulation concept. | Download Scientific Diagram
Download scientific diagram | Dry granulation concept. ... To save the thermal energy and retain the added value of slag, dry granulation could be an attractive and eco-friendly option. Among all ...
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6-Process flow diagram of the rotary-drum granulation …
Download scientific diagram | 6-Process flow diagram of the rotary-drum granulation-heat recovery system [8]. from publication: Slag Crystallization Pertaining to Heat Recovery | Slag and Heat ...
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Breaking boundaries in slag waste heat recovery: Review and …
Extensive lab-scale studies had been conducted to better understand the slag granulation performance intensively involving visualization and numerical simulation ... Tian's results revealed that the slag TTT diagram presented a double C-shaped curve with critical cooling rates of 4.5 ℃/s and 14.3 ℃/s. The critical cooling rate was 6 ℃/s ...
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Installation of a State-of-the-Art Slag Granulation Plant
formation of a solid slag layer over the length of the runner, thus reducing the need for maintenance of the runner section immediately before the slag spray box. Figure 6: Thermal analysis of copper stave for slag runner Condensation Tower As previously discussed, the original concept of granulation systems allowed atmospheric emis-
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Appearance of slag granulation by RCA under …
At the present molten slag from a blast furnace (B.F.) is granulated by impinging much water without any recovery of its much sensible heat (1 823 K), polluting water and atmosphere.
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Modeling on Dry Centrifugal Granulation Process of …
dry granulation process of molten slag which can solves the problems mentioned above to a large extent. Different kinds of dry granulation techniques have been proposed and investigated. Typical examples of these processes include granulation by cooling drum, mechanical stirrer, rolling drum, high speed air and centrifugal force etc.1,2) Among
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Characteristics of Glass Beads from Molten Slag …
Figure 1 shows a schematic diagram of the RCA equip-ment used in this experiment. It mainly consists of four parts: ... slag granulation was simultaneously observed by a video camera. The slag drops were collected and then classified ... the inside and the outside of the collector box. The slag outside the collector box refers to the slag, which
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XRD patterns of samples from slag reduction (AS-1-3
Download scientific diagram | XRD patterns of samples from slag reduction (AS-1-3 – sample contained in graphite crucible, SiMgO-1-2 - sample contained in MgO crucible) from publication ...
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Process flow diagram of a dry slag granulation …
In this paper, the slag granulation and heat recovery options are reviewed and given a critical evaluation, aiming to provide a basis for future directions in slag handling.
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Products › Ironmaking and steelmaking › Slag …
The slag granulation plant comprises three sections: for granulation, dewatering and storage. In the granulation section, the liquid slag is 'quenched' by pouring onto it an excess water stream. The evaporated water will be condensed in a …
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A new technological approach to the granulation of slag …
A system analysis of advantages and features of the semi-industrial pilot HVG-plant showed that its operation for granulation of slag melts of ferrous metallurgy in enterprises equipped with modern arc electro-thermic ore-smelting furnaces is feasible according to the schematic diagram presented in Fig. 11, where 1 is arc ore-thermal furnace, 2 ...
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Research status of centrifugal granulation, physical heat recovery …
A large number of by-products such as dust, sludge and slag can be generated during the production of iron and steel [3].As reported by the World Steel Association, the mass of slag accounts for 90 % of the total solid by-products produced (Fig. 2).The temperature of the discharged blast furnace slag (BF slag) is between 1450 ° C and 1650 ° C, which carries a …
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HEAT EXCHANGE IN THE GRANULATION CHAMBER OF …
FOR SLAG DRY GRANULATION S. V. Lukin,1 N. I. Shestakov,2 and E. M. Il'icheva3 UDC 669.1(07) In the blast-furnace production, fiery-liquid slags have temperatures of about 1400–1500 °C at the exit ... Schematic diagram of an installation for the dry granulation of slag: 1 — channel for the supply of liquid slags; 2 — rotat-ing cup; ...
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A Novel Stacked Rotary Cup Atomizer Toward Efficient …
The authentic molten slag is adopted as working medium and the centrifugal granulation phenomena are visually investigated including the molten slag fragmentation on the surface of atomizer and the impacting of slag droplets on the water cooled wall. A film perforation fragmentation mode is found in the experiments under high slag flow rate.
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I, 2, I STEEL SLAG GRA
Table 2 shows the density of solid slag obtained from granulation and that obtained from direct pouring from EAF. This density data is necessary as the granulated slag will be used as the …
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